/* packet-mint.c * Routines for the disassembly of the Media Independent Network Transport * protocol used between wireless controllers and APs * * Copyright 2013 Joerg Mayer (see AUTHORS file) * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ /* * Extremenetworks/Zebra/Motorola/Symbol WLAN proprietary protocol * http://www.awimobility.com/s.nl/ctype.KB/it.I/id.7761/KB.81/.f * and * http://www.michaelfmcnamara.com/files/motorola/WiNG_5X_How_To_NOC.pdf * looks like a mixture of lwapp/capwap and is-is/ospf * * MLCP: MINT Link Creation Protocol */ /* We don't want the tranported data to pollute the output until * we know how to correctly determine the packet type and length */ #define MINT_DEVELOPMENT 1 #define NEW_PROTO_TREE_API 1 #include "config.h" #include #include #include #include void proto_register_mint(void); void proto_reg_handoff_mint(void); #define PROTO_SHORT_NAME "MINT" #define PROTO_LONG_NAME "Media Independent Network Transport" /* 0x8783 ETHERTYPE_MINT */ /* Destmac: 01-a0-f8-00-00-00: Hello packets in multicast mode */ /* Mint overhead: 86 bytes */ /* 24576 = 0x6000 */ #define PORT_MINT_CONTROL_TUNNEL 24576 /* 24577 = 0x6001 */ #define PORT_MINT_DATA_TUNNEL 24577 #define PORT_MINT_RANGE "24576-24577" /* MLCP: VLAN or IP-based */ static dissector_handle_t eth_handle; /* ett handles */ static int ett_mint_ethshim = -1; static int ett_mint = -1; static int ett_mint_header = -1; static int ett_mint_ctrl = -1; static int ett_mint_data = -1; static dissector_handle_t mint_control_handle; static dissector_handle_t mint_data_handle; static dissector_handle_t mint_eth_handle; /* Output of "service show mint ports" on controller */ typedef enum { MINT_PORT_0 = 0, MINT_PORT_DATA = 1, MINT_PORT_DATA_FLOOD = 2, MINT_PORT_FDB_UPDATE = 3, MINT_PORT_MDD = 8, MINT_PORT_RIM = 9, MINT_PORT_SMARTRF = 10, MINT_PORT_CONFIG = 11, MINT_PORT_ROUTER = 12, MINT_PORT_REDUNDANCY = 13, MINT_PORT_HOTSPOT = 14, MINT_PORT_PING = 15, MINT_PORT_STATS = 16, MINT_PORT_JOIN = 18, MINT_PORT_FILEXFR = 19, MINT_PORT_SECURITY = 20, MINT_PORT_BOOTSTRAP = 21, MINT_PORT_XPATH = 22, MINT_PORT_MCAST_RP = 23, MINT_PORT_MCAST_CTRL = 24, MINT_PORT_MCAST_DATA = 25, MINT_PORT_RADPROXY = 26, MINT_PORT_CLUSTER = 27, MINT_PORT_MIGRATION = 28, MINT_PORT_CLUSTER_SYNC = 29, MINT_PORT_NEIGHBOR = 30, MINT_PORT_GKEY = 31, MINT_PORT_MARP = 32, MINT_PORT_MPROXY = 33, MINT_PORT_MLCP = 34, MINT_PORT_TELNET = 35, MINT_PORT_RDBG_REQ = 36, MINT_PORT_RDBG_SRV0 = 37, MINT_PORT_RDBG_SRV1 = 38, MINT_PORT_RDBG_SRV2 = 39, MINT_PORT_RDBG_SRV3 = 40, MINT_PORT_RDBG_SRV4 = 41, MINT_PORT_RDBG_SRV5 = 42, MINT_PORT_RDBG_SRV6 = 43, MINT_PORT_RDBG_SRV7 = 44, MINT_PORT_TRACEROUTE = 45, MINT_PORT_STATS_LISTEN = 46, MINT_PORT_NOC_CONTROLLER = 47, MINT_PORT_NOC_CLIENT = 48, MINT_PORT_STATS_SERVER = 49, MINT_PORT_EXTVLAN = 50, MINT_PORT_RAD_DYNAMIC = 51, MINT_PORT_RFD_CLIENT = 52, MINT_PORT_RFD_SERVER = 53, MINT_PORT_NOC_SERVER = 54, MINT_PORT_NOC__CLIENT = 55, MINT_PORT_CP_STATS_CLIENT = 56, MINT_PORT_NX_URLINFO_SRVR = 57, MINT_PORT_NX_URLINFO_PRXY = 58, MINT_PORT_LDAP_PROXY = 59, MINT_PORT_ANALYTICS = 60, MINT_PORT_ADOPTION = 61, MINT_PORT_CLUSTER_ADOPT = 62, MINT_PORT_NOC_SITE = 63, MINT_PORT_DAD = 64, MINT_PORT_CCACHE = 65, MINT_PORT_GLB_ASSOC_LIST = 66, MINT_PORT_BONJOUR = 131, MINT_PORT_DPD2_EXTIF = 132, MINT_PORT_TROUBLE = 133, MINT_PORT_URLF_CLASSIFIER = 134, MINT_PORT_NF_PROXY = 135, MINT_PORT_WING_EXPRESS = 136, MINT_PORT_NSM_STAT_CLIENT = 138, MINT_PORT_DPD2_STATS_CLIENT = 140, MINT_PORT_BTIM_STATS_CLIENT = 142 } mint_packettype_t; static const value_string mint_port_vals[] = { { MINT_PORT_0, "0 port" }, { MINT_PORT_DATA, "data/dgram" }, { MINT_PORT_DATA_FLOOD, "data-flood/dgram" }, { MINT_PORT_FDB_UPDATE, "fdb-update/dgram" }, { MINT_PORT_MDD, "mdd/dgram" }, { MINT_PORT_RIM, "rim/dgram" }, { MINT_PORT_SMARTRF, "smartrf/seqpkt" }, { MINT_PORT_CONFIG, "config/stream" }, { MINT_PORT_ROUTER, "router/dgram" }, { MINT_PORT_REDUNDANCY, "redundancy/seqpkt" }, { MINT_PORT_HOTSPOT, "hotspot/seqpkt" }, { MINT_PORT_PING, "ping/dgram" }, { MINT_PORT_STATS, "stats/dgram" }, { MINT_PORT_JOIN, "join/seqpkt" }, { MINT_PORT_FILEXFR, "filexfr/stream" }, { MINT_PORT_SECURITY, "security/seqpkt" }, { MINT_PORT_BOOTSTRAP, "bootstrap/seqpkt" }, { MINT_PORT_XPATH, "xpath/stream" }, { MINT_PORT_MCAST_RP, "mcast-rp/dgram" }, { MINT_PORT_MCAST_CTRL, "mcast-ctrl/seqpkt" }, { MINT_PORT_MCAST_DATA, "mcast-data/seqpkt" }, { MINT_PORT_RADPROXY, "radproxy/dgram" }, { MINT_PORT_CLUSTER, "cluster/seqpkt" }, { MINT_PORT_MIGRATION, "migration/stream" }, { MINT_PORT_CLUSTER_SYNC, "cluster-sync/stream" }, { MINT_PORT_NEIGHBOR, "neighbor/seqpkt" }, { MINT_PORT_GKEY, "gkey/dgram" }, { MINT_PORT_MARP, "marp/dgram" }, { MINT_PORT_MPROXY, "mproxy/seqpkt" }, { MINT_PORT_MLCP, "mlcp/dgram" }, { MINT_PORT_TELNET, "telnet/stream" }, { MINT_PORT_RDBG_REQ, "rdbg-req/seqpkt" }, { MINT_PORT_RDBG_SRV0, "rdbg-srv0/seqpkt" }, { MINT_PORT_RDBG_SRV1, "rdbg-srv1/seqpkt" }, { MINT_PORT_RDBG_SRV2, "rdbg-srv2/seqpkt" }, { MINT_PORT_RDBG_SRV3, "rdbg-srv3/seqpkt" }, { MINT_PORT_RDBG_SRV4, "rdbg-srv4/seqpkt" }, { MINT_PORT_RDBG_SRV5, "rdbg-srv5/seqpkt" }, { MINT_PORT_RDBG_SRV6, "rdbg-srv6/seqpkt" }, { MINT_PORT_RDBG_SRV7, "rdbg-srv7/seqpkt" }, { MINT_PORT_TRACEROUTE, "traceroute/seqpkt" }, { MINT_PORT_STATS_LISTEN, "stats-listen/seqpkt" }, { MINT_PORT_NOC_CONTROLLER, "noc-controller/seqpkt" }, { MINT_PORT_NOC_CLIENT, "noc-client/seqpkt" }, { MINT_PORT_STATS_SERVER, "stats-server/seqpkt" }, { MINT_PORT_EXTVLAN, "extvlan/dgram" }, { MINT_PORT_RAD_DYNAMIC, "rad-dynamic/seqpkt" }, { MINT_PORT_RFD_CLIENT, "rfd_client/stream" }, { MINT_PORT_RFD_SERVER, "rfd_server/stream" }, { MINT_PORT_NOC_SERVER, "noc_server/stream" }, { MINT_PORT_NOC__CLIENT, "noc_client/stream" }, { MINT_PORT_CP_STATS_CLIENT, "cp_stats_client/stream" }, { MINT_PORT_NX_URLINFO_SRVR, "nx_urlinfo_srvr/dgram" }, { MINT_PORT_NX_URLINFO_PRXY, "nx_urlinfo_prxy/dgram" }, { MINT_PORT_LDAP_PROXY, "ldap_proxy/stream" }, { MINT_PORT_ANALYTICS, "analytics/dgram" }, { MINT_PORT_ADOPTION, "adoption/seqpkt" }, { MINT_PORT_CLUSTER_ADOPT, "cluster-adopt/seqpkt" }, { MINT_PORT_NOC_SITE, "noc-site/stream" }, { MINT_PORT_DAD, "dad/stream" }, { MINT_PORT_CCACHE, "ccache/dgram" }, { MINT_PORT_GLB_ASSOC_LIST, "glb_assoc_list/dgram" }, { MINT_PORT_BONJOUR, "bonjour/dgram" }, { MINT_PORT_DPD2_EXTIF, "dpd2-extif/dgram" }, { MINT_PORT_TROUBLE, "trouble/dgram" }, { MINT_PORT_URLF_CLASSIFIER, "urlf_classifier/dgram" }, { MINT_PORT_NF_PROXY, "nf-proxy/dgram" }, { MINT_PORT_WING_EXPRESS, "wing_express/dgram" }, { MINT_PORT_NSM_STAT_CLIENT, "nsm-stat-client/stream" }, { MINT_PORT_DPD2_STATS_CLIENT, "dpd2-stats-client/stream" }, { MINT_PORT_BTIM_STATS_CLIENT, "btim-stats-client/stream" }, { 0, NULL } }; static const value_string mint_router_csnp_tlv_vals[] = { { 0, NULL } }; static const value_string mint_router_helo_tlv_vals[] = { { 1, "MINT ID" }, { 8, "IPv4 address" }, { 0, NULL } }; static const value_string mint_router_lsp_tlv_vals[] = { { 8, "MINT ID" }, { 0, NULL } }; static const value_string mint_router_psnp_tlv_vals[] = { { 0, NULL } }; static const value_string mint_0x22_tlv_vals[] = { { 0, NULL } }; /* hfi elements */ #define MINT_HF_INIT HFI_INIT(proto_mint) static header_field_info *hfi_mint = NULL; /* MINT Eth Shim */ static header_field_info hfi_mint_ethshim MINT_HF_INIT = { "MINT Ethernet Shim", "mint.ethshim", FT_PROTOCOL, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_ethshim_unknown MINT_HF_INIT = { "Unknown", "mint.ethshim.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_ethshim_length MINT_HF_INIT = { "Length", "mint.ethshim.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }; /* MINT common */ static header_field_info hfi_mint_header MINT_HF_INIT = { "Header", "mint.header", FT_PROTOCOL, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_header_unknown1 MINT_HF_INIT = { "HdrUnk1", "mint.header.unknown1", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_header_ttl MINT_HF_INIT = { "TTL", "mint.header.ttl", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_header_unknown2 MINT_HF_INIT = { "HdrUnk2", "mint.header.unknown2", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_header_srcid MINT_HF_INIT = { "Src MINT ID", "mint.header.srcid", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_header_dstid MINT_HF_INIT = { "Dst MINT ID", "mint.header.dstid", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_header_srcdataport MINT_HF_INIT = { "Src port", "mint.header.srcport", FT_UINT16, BASE_DEC, VALS(mint_port_vals), 0x0, NULL, HFILL }; static header_field_info hfi_mint_header_dstdataport MINT_HF_INIT = { "Dst port", "mint.header.dstport", FT_UINT16, BASE_DEC, VALS(mint_port_vals), 0x0, NULL, HFILL }; /* MINT Data */ static header_field_info hfi_mint_data MINT_HF_INIT = { "Data Frame", "mint.data", FT_PROTOCOL, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_data_vlan MINT_HF_INIT = { "Data VLAN", "mint.data.vlan", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_data_seqno MINT_HF_INIT = { "Sequence Number", "mint.data.seqno", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_data_unknown1 MINT_HF_INIT = { "DataUnk1", "mint.data.unknown1", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; /* MINT Control common */ static header_field_info hfi_mint_control MINT_HF_INIT = { "Control Frame", "mint.control", FT_PROTOCOL, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_control_32zerobytes MINT_HF_INIT = { "Zero Bytes", "mint.control.32zerobytes", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_control_unknown1 MINT_HF_INIT = { "CtrlUnk1", "mint.control.unknown1", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; /* Router */ static header_field_info hfi_mint_router_unknown1 MINT_HF_INIT = { "Unknown1", "mint.control.router.unknown1", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_unknown2 MINT_HF_INIT = { "Unknown2", "mint.control.router.unknown2", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_unknown3 MINT_HF_INIT = { "Unknown3", "mint.control.router.unknown3", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_header_length MINT_HF_INIT = { "Headerlength", "mint.control.router.header.length", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_message_type MINT_HF_INIT = { "Message type", "mint.control.router.message.type", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_header_sender MINT_HF_INIT = { "Sender ID", "mint.control.router.header.sender", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_header_unknown MINT_HF_INIT = { "Header unknown", "mint.control.router.header.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_type_unknown MINT_HF_INIT = { "TLV Type", "mint.control.router.tlvtype", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_type_csnp MINT_HF_INIT = { "TLV Type", "mint.control.router.tlvtype", FT_UINT8, BASE_DEC, VALS(mint_router_csnp_tlv_vals), 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_type_helo MINT_HF_INIT = { "TLV Type", "mint.control.router.tlvtype", FT_UINT8, BASE_DEC, VALS(mint_router_helo_tlv_vals), 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_type_lsp MINT_HF_INIT = { "TLV Type", "mint.control.router.tlvtype", FT_UINT8, BASE_DEC, VALS(mint_router_lsp_tlv_vals), 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_type_psnp MINT_HF_INIT = { "TLV Type", "mint.control.router.tlvtype", FT_UINT8, BASE_DEC, VALS(mint_router_psnp_tlv_vals), 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_length MINT_HF_INIT = { "TLV Length", "mint.control.router.tlvlength", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_array MINT_HF_INIT = { "Array indicator", "mint.control.router.array", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_element MINT_HF_INIT = { "Array element", "mint.control.router.element", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_router_value MINT_HF_INIT = { "TLV Value", "mint.control.router.tlvvalue", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; /* Neighbor */ static header_field_info hfi_mint_neighbor_unknown MINT_HF_INIT = { "Unknown", "mint.control.neighbor.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; /* MLCP */ static header_field_info hfi_mint_mlcp_message MINT_HF_INIT = { "Message", "mint.control.mlcp.message", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_mlcp_type MINT_HF_INIT = { "TLV Type", "mint.control.mlcp.tlvtype", FT_UINT8, BASE_DEC, VALS(mint_0x22_tlv_vals), 0x0, NULL, HFILL }; static header_field_info hfi_mint_mlcp_length MINT_HF_INIT = { "TLV Length", "mint.control.mlcp.tlvlength", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }; static header_field_info hfi_mint_mlcp_value MINT_HF_INIT = { "TLV Value", "mint.control.mlcp.tlvvalue", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }; /* End hfi elements */ static int dissect_eth_frame(tvbuff_t *tvb, packet_info *pinfo, proto_tree *mint_tree, volatile guint32 offset, guint32 length) { tvbuff_t *eth_tvb; #ifdef MINT_DEVELOPMENT col_set_writable(pinfo->cinfo, -1, FALSE); #endif eth_tvb = tvb_new_subset_length(tvb, offset, length); /* Continue after Ethernet dissection errors */ TRY { call_dissector(eth_handle, eth_tvb, pinfo, mint_tree); } CATCH_NONFATAL_ERRORS { show_exception(eth_tvb, pinfo, mint_tree, EXCEPT_CODE, GET_MESSAGE); } ENDTRY; offset += length; #ifdef MINT_DEVELOPMENT col_set_writable(pinfo->cinfo, -1, TRUE); #endif return offset; } static int dissect_mint_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint32 packet_length, guint received_via) { proto_item *ti; proto_tree *mint_tree = NULL; proto_tree *mint_header_tree = NULL; proto_tree *mint_data_tree = NULL; proto_tree *mint_ctrl_tree = NULL; guint16 bytes_remaining; guint16 mint_port; guint8 type, length, header_length; guint32 message_type; guint8 element_length; static header_field_info *display_hfi_tlv_vals; mint_port = tvb_get_ntohs(tvb, offset + 12); col_set_str(pinfo->cinfo, COL_PROTOCOL, PROTO_SHORT_NAME); col_add_str(pinfo->cinfo, COL_INFO, val_to_str(mint_port, mint_port_vals, "Type %03d")); ti = proto_tree_add_item(tree, hfi_mint, tvb, offset, packet_length, ENC_NA); mint_tree = proto_item_add_subtree(ti, ett_mint); ti = proto_tree_add_item(mint_tree, &hfi_mint_header, tvb, offset, 16, ENC_NA); mint_header_tree = proto_item_add_subtree(ti, ett_mint_header); /* MINT header */ proto_tree_add_item(mint_header_tree, &hfi_mint_header_unknown1, tvb, offset, 1, ENC_NA); offset += 1; proto_tree_add_item(mint_header_tree, &hfi_mint_header_ttl, tvb, offset, 1, ENC_NA); offset += 1; proto_tree_add_item(mint_header_tree, &hfi_mint_header_unknown2, tvb, offset, 2, ENC_NA); offset += 2; proto_tree_add_item(mint_header_tree, &hfi_mint_header_dstid, tvb, offset, 4, ENC_NA); offset += 4; proto_tree_add_item(mint_header_tree, &hfi_mint_header_srcid, tvb, offset, 4, ENC_NA); offset += 4; proto_tree_add_item(mint_header_tree, &hfi_mint_header_dstdataport, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(mint_header_tree, &hfi_mint_header_srcdataport, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; /* FIXME: This is probably not the right way to determine the packet type. * It's more likely something in mint_header_unknown1 but I haven't * found out what. */ switch(mint_port) { case MINT_PORT_DATA: ti = proto_tree_add_item(mint_tree, &hfi_mint_data, tvb, offset, packet_length - 16, ENC_NA); mint_data_tree = proto_item_add_subtree(ti, ett_mint_data); proto_tree_add_item(mint_data_tree, &hfi_mint_data_unknown1, tvb, offset, 2, ENC_NA); offset += 2; /* Transported user frame */ if (offset < packet_length) offset += dissect_eth_frame(tvb, pinfo, tree, offset, packet_length - offset); break; case MINT_PORT_DATA_FLOOD: ti = proto_tree_add_item(mint_tree, &hfi_mint_data, tvb, offset, packet_length - 16, ENC_NA); mint_data_tree = proto_item_add_subtree(ti, ett_mint_data); /* Decode as vlan only for now. To be verified against a capture * with CoS != 0 */ proto_tree_add_item(mint_data_tree, &hfi_mint_data_vlan, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; proto_tree_add_item(mint_data_tree, &hfi_mint_data_seqno, tvb, offset, 4, ENC_NA); offset += 4; proto_tree_add_item(mint_data_tree, &hfi_mint_data_unknown1, tvb, offset, 4, ENC_NA); offset += 4; /* Transported user frame */ if (offset < packet_length) offset += dissect_eth_frame(tvb, pinfo, tree, offset, packet_length - offset); break; case MINT_PORT_ROUTER: ti = proto_tree_add_item(mint_tree, &hfi_mint_control, tvb, offset, packet_length - 16, ENC_NA); mint_ctrl_tree = proto_item_add_subtree(ti, ett_mint_ctrl); proto_tree_add_item(mint_ctrl_tree, &hfi_mint_control_32zerobytes, tvb, offset, 32, ENC_NA); offset += 32; proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_unknown1, tvb, offset, 1, ENC_NA); offset += 1; proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_unknown2, tvb, offset, 1, ENC_NA); offset += 1; proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_unknown3, tvb, offset, 1, ENC_NA); offset += 1; header_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_header_length, tvb, offset, 1, ENC_NA); offset += 1; message_type = tvb_get_ntohl(tvb, offset); proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_message_type, tvb, offset, 4, ENC_NA); offset += 4; proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_header_sender, tvb, offset, 4, ENC_NA); offset += 4; switch (message_type) { case 0x43534E50: /* CSNP */ element_length = 12; display_hfi_tlv_vals = &hfi_mint_router_type_csnp; break; case 0x48454C4F: /* HELO */ element_length = 0; display_hfi_tlv_vals = &hfi_mint_router_type_helo; break; case 0x4C535000: /* LSP */ element_length = 8; display_hfi_tlv_vals = &hfi_mint_router_type_lsp; break; case 0x50534E50: /* PSNP */ element_length = 4; display_hfi_tlv_vals = &hfi_mint_router_type_psnp; break; default: element_length = 0; display_hfi_tlv_vals = &hfi_mint_router_type_unknown; } /* FIXME: This should go into the per message_type switch above */ if (header_length > 12) { proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_header_unknown, tvb, offset, header_length - 12, ENC_NA); offset += header_length - 12; } while (offset < packet_length - 2) { type = tvb_get_guint8(tvb, offset); proto_tree_add_item(mint_ctrl_tree, display_hfi_tlv_vals, tvb, offset, 1, ENC_NA); offset += 1; length = tvb_get_guint8(tvb, offset); /* FIXME: This is a hack - reliable array detection missing */ if (type == 1 && length == 128) { proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_array, tvb, offset, 1, ENC_NA); offset += 1; length = tvb_get_guint8(tvb, offset); } proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_length, tvb, offset, 1, ENC_NA); offset += 1; if (offset + length > packet_length) { /* FIXME: print expert information */ break; } if (type == 1 && element_length) { guint32 end_offset = offset + length; for (; offset < end_offset; offset += element_length) { proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_element, tvb, offset, element_length, ENC_NA); } } else { proto_tree_add_item(mint_ctrl_tree, &hfi_mint_router_value, tvb, offset, length, ENC_NA); offset += length; } } break; case MINT_PORT_NEIGHBOR: ti = proto_tree_add_item(mint_tree, &hfi_mint_control, tvb, offset, packet_length - 16, ENC_NA); mint_ctrl_tree = proto_item_add_subtree(ti, ett_mint_ctrl); proto_tree_add_item(mint_ctrl_tree, &hfi_mint_control_32zerobytes, tvb, offset, 32, ENC_NA); offset += 32; bytes_remaining = packet_length - offset; proto_tree_add_item(mint_ctrl_tree, &hfi_mint_neighbor_unknown, tvb, offset, bytes_remaining, ENC_NA); offset += bytes_remaining; break; case MINT_PORT_MLCP: ti = proto_tree_add_item(mint_tree, &hfi_mint_control, tvb, offset, packet_length - 16, ENC_NA); mint_ctrl_tree = proto_item_add_subtree(ti, ett_mint_ctrl); proto_tree_add_item(mint_ctrl_tree, &hfi_mint_control_32zerobytes, tvb, offset, 32, ENC_NA); offset += 32; proto_tree_add_item(mint_ctrl_tree, &hfi_mint_mlcp_message, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; while (offset < packet_length - 2) { proto_tree_add_item(mint_ctrl_tree, &hfi_mint_mlcp_type, tvb, offset, 1, ENC_NA); offset += 1; length = tvb_get_guint8(tvb, offset); proto_tree_add_item(mint_ctrl_tree, &hfi_mint_mlcp_length, tvb, offset, 1, ENC_NA); offset += 1; if (offset + length > packet_length) { /* print expert information */ break; } proto_tree_add_item(mint_ctrl_tree, &hfi_mint_mlcp_value, tvb, offset, length, ENC_NA); offset += length; } break; default: bytes_remaining = packet_length - offset; switch(received_via) { case PORT_MINT_CONTROL_TUNNEL: case ETHERTYPE_MINT: proto_tree_add_item(mint_tree, &hfi_mint_control_unknown1, tvb, offset, bytes_remaining, ENC_NA); break; case PORT_MINT_DATA_TUNNEL: proto_tree_add_item(mint_tree, &hfi_mint_data_unknown1, tvb, offset, bytes_remaining, ENC_NA); break; default: DISSECTOR_ASSERT_NOT_REACHED(); } offset += bytes_remaining; break; } #if defined MINT_DEVELOPMENT tree_expanded_set(ett_mint, TRUE); tree_expanded_set(ett_mint_ethshim, TRUE); tree_expanded_set(ett_mint_header, TRUE); tree_expanded_set(ett_mint_ctrl, TRUE); tree_expanded_set(ett_mint_data, TRUE); #endif return offset; } static int dissect_mint_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { guint32 packet_length = tvb_captured_length(tvb); return dissect_mint_common(tvb, pinfo, tree, 0, packet_length, PORT_MINT_CONTROL_TUNNEL); } static int dissect_mint_data(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { guint32 packet_length = tvb_captured_length(tvb); return dissect_mint_common(tvb, pinfo, tree, 0, packet_length, PORT_MINT_DATA_TUNNEL); } static int dissect_mint_ethshim(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { proto_item *ti; proto_tree *mint_ethshim_tree = NULL; guint32 offset = 0; guint32 packet_length; ti = proto_tree_add_item(tree, &hfi_mint_ethshim, tvb, offset, 4, ENC_NA); mint_ethshim_tree = proto_item_add_subtree(ti, ett_mint_ethshim); proto_tree_add_item(mint_ethshim_tree, &hfi_mint_ethshim_unknown, tvb, offset, 2, ENC_NA); offset += 2; proto_tree_add_item(mint_ethshim_tree, &hfi_mint_ethshim_length, tvb, offset, 2, ENC_BIG_ENDIAN); packet_length = tvb_get_ntohs(tvb, offset) + 4; offset += 2; offset += dissect_mint_common(tvb, pinfo, tree, 4, packet_length, ETHERTYPE_MINT); return offset; } static gboolean test_mint_control(tvbuff_t *tvb _U_) { #if 0 /* Minimum of 8 bytes, first byte (version) has value of 3 */ if ( tvb_length(tvb) < 8 || tvb_get_guint8(tvb, 0) != 3 /* || tvb_get_guint8(tvb, 2) != 0 || tvb_get_ntohs(tvb, 6) > tvb_reported_length(tvb) */ ) { return FALSE; } #endif return TRUE; } static gboolean test_mint_data(tvbuff_t *tvb _U_) { #if 0 /* Minimum of 8 bytes, first byte (version) has value of 3 */ if ( tvb_length(tvb) < 8 || tvb_get_guint8(tvb, 0) != 3 /* || tvb_get_guint8(tvb, 2) != 0 || tvb_get_ntohs(tvb, 6) > tvb_reported_length(tvb) */ ) { return FALSE; } #endif return TRUE; } static gboolean test_mint_eth(tvbuff_t *tvb _U_) { #if 0 /* Minimum of 8 bytes, first byte (version) has value of 3 */ if ( tvb_length(tvb) < 8 || tvb_get_guint8(tvb, 0) != 3 /* || tvb_get_guint8(tvb, 2) != 0 || tvb_get_ntohs(tvb, 6) > tvb_reported_length(tvb) */ ) { return FALSE; } #endif return TRUE; } static int dissect_mint_control_static(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { if ( !test_mint_control(tvb) ) { return 0; } return dissect_mint_control(tvb, pinfo, tree); } static int dissect_mint_data_static(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { if ( !test_mint_data(tvb) ) { return 0; } return dissect_mint_data(tvb, pinfo, tree); } static int dissect_mint_ethshim_static(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { if ( !test_mint_eth(tvb) ) { return 0; } return dissect_mint_ethshim(tvb, pinfo, tree); } void proto_register_mint(void) { #ifndef HAVE_HFI_SECTION_INIT static header_field_info *hfi[] = { /* MINT Eth Shim */ &hfi_mint_ethshim, &hfi_mint_ethshim_unknown, &hfi_mint_ethshim_length, /* MINT common */ &hfi_mint_header, &hfi_mint_header_unknown1, &hfi_mint_header_ttl, &hfi_mint_header_unknown2, &hfi_mint_header_srcid, &hfi_mint_header_dstid, &hfi_mint_header_srcdataport, &hfi_mint_header_dstdataport, /* MINT Data */ &hfi_mint_data, &hfi_mint_data_vlan, &hfi_mint_data_seqno, &hfi_mint_data_unknown1, /* MINT Control */ &hfi_mint_control, &hfi_mint_control_32zerobytes, &hfi_mint_control_unknown1, /* Router */ &hfi_mint_router_message_type, &hfi_mint_router_header_sender, &hfi_mint_router_unknown1, &hfi_mint_router_unknown2, &hfi_mint_router_unknown3, &hfi_mint_router_header_length, &hfi_mint_router_header_unknown, &hfi_mint_router_type_unknown, &hfi_mint_router_type_csnp, &hfi_mint_router_type_helo, &hfi_mint_router_type_lsp, &hfi_mint_router_type_psnp, &hfi_mint_router_length, &hfi_mint_router_array, &hfi_mint_router_element, &hfi_mint_router_value, /* Neighbor */ &hfi_mint_neighbor_unknown, /* MLCP */ &hfi_mint_mlcp_message, &hfi_mint_mlcp_type, &hfi_mint_mlcp_length, &hfi_mint_mlcp_value, }; #endif static gint *ett[] = { &ett_mint_ethshim, &ett_mint, &ett_mint_header, &ett_mint_ctrl, &ett_mint_data, }; int proto_mint, proto_mint_data; proto_mint = proto_register_protocol(PROTO_LONG_NAME, PROTO_SHORT_NAME, "mint"); /* Created to remove Decode As confusion */ proto_mint_data = proto_register_protocol_in_name_only("Media Independent Network Transport Data", "MINT (Data)", "mint_data", proto_mint, FT_PROTOCOL); hfi_mint = proto_registrar_get_nth(proto_mint); proto_register_fields(proto_mint, hfi, array_length(hfi)); proto_register_subtree_array(ett, array_length(ett)); mint_control_handle = create_dissector_handle(dissect_mint_control_static, proto_mint); mint_data_handle = create_dissector_handle(dissect_mint_data_static, proto_mint_data); mint_eth_handle = create_dissector_handle(dissect_mint_ethshim_static, proto_mint); } void proto_reg_handoff_mint(void) { dissector_add_uint_range_with_preference("udp.port", PORT_MINT_RANGE, mint_control_handle); dissector_add_uint("ethertype", ETHERTYPE_MINT, mint_eth_handle); eth_handle = find_dissector_add_dependency("eth_withoutfcs", hfi_mint->id); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 8 * tab-width: 8 * indent-tabs-mode: t * End: * * vi: set shiftwidth=8 tabstop=8 noexpandtab: * :indentSize=8:tabSize=8:noTabs=false: */